Прямая, параллельная основаниям трапеции ABCD{"color":"#202335","fontFamily":"stix","language":"ru"}, пересекает её боковые стороны AB{"color":"#202335","fontFamily":"stix","language":"ru"} и CD{"color":"#202335","fontFamily":"stix","language":"ru"} в точках E{"color":"#202335","fontFamily":"stix","language":"ru"} и F{"color":"#202335","fontFamily":"stix","language":"ru"} соответственно. Найдите длину отрезка EF{"color":"#202335","fontFamily":"stix","language":"ru"}, если AD=44{"color":"#202335","fontFamily":"stix","language":"ru"}, ВС=24{"color":"#202335","fontFamily":"stix","language":"ru"}, CF:DF=3:1{"color":"#202335","fontFamily":"stix","language":"ru"}.
